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Clean as a BREEZE. Fossil fuels pollute the air and heat the planet. You say you want a revolution? You will find it in the sun and the wind. 20 th Century. Horse-drawn carriages  automobiles. Fossil fuel offered great amounts of energy in an easily portable and storable form.

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Clean as a BREEZE

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Clean as a BREEZE

Fossil fuels pollute the air and heat the planet. You say you want a revolution? You will find it in the sun and the wind.


20th Century

  • Horse-drawn carriages automobiles.

  • Fossil fuel offered great amounts of energy in an easily portable and storable form.

  • Fossil fuels = conventional energy sources.

  • Petroleum in industry:

    • chemical precursor to plastics.

    • fuel for the automobile and airplane.


However…

  • Smog and other forms of air pollution, global warming, climate change, and an accelerating depletion of natural resources.

  • Long-term impact on the environment.


21st century

  • Fossil fuels scarce and more expensive.

  • More demand.

  • Running out of oil, SOON!

  • Synthetic materials, advanced electronics, and biotechnology efficiently and cleanly provide energy.


Here comes the SUN!


Solar Cells

  • Far more expensive than conventional generators.

  • Least expensive source of power, not connected to an electric grid.


  • Japan

    • dwelling with silicon roof tiles, supported by government.

  • Switzerland and Germany

    • office with them integrated into the glass, allowing windows to produce power while transmitting filtered sunlight.

  • European analysts

    • covering flat roof space of building with solar cells could provide half of three quarters.


Blowing in the WIND


Wind-power

  • Modern with tough fiber-glass blades and electronic controls.

  • Cost is comparable to fossil-fuel power and still falling.

  • Thousands have been installed in Europe. Denmark 6% of its electricity from wind power.

  • India and China  installing.


Windmill

  • Currents of air to put out strong currents of electricity.

  • Energizing without hurting environment.


Fuel Cell

  • Cleanly and quietly combine with hydrogen and oxygen to produce electricity.

  • Waste = WATER.

  • Use in shuttle fleet

  • Could replace the internal combustion engines that power vehicles.


Toshiba develops MP3 player with 60 hour fuel cell battery.


Clean Energy

  • Use of clean power is growing much faster.

  • An energy revolution would offer huge business opportunities.

  • Renewable energy never runs out.

  • Sunlight contains 6,000 times as much energy as is used by all countries combined.


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